From 81cb656a7f795bf71149c4f43edb60a3117aa474 Mon Sep 17 00:00:00 2001
From: Jeremy Kaplan <code@jdkaplan.dev>
Date: Tue, 9 Dec 2025 17:02:14 -0600
Subject: [PATCH] 2025 Day 2 Part 1

---
 2025/day02.ua | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 2025/day02.ua

diff --git a/2025/day02.ua b/2025/day02.ua
new file mode 100644
index 0000000..feed165
--- /dev/null
+++ b/2025/day02.ua
@@ -0,0 +1,33 @@
+~ "aoc.ua" ~ Lines
+
+Input ← (
+  &fras "input/day02.txt"
+  °□ ⊢Lines
+  ⊜□ ⊸≠ @,
+)
+
+ParseRange ← (
+  ⊜□ ⊸≠ @,
+  ⍚(⊂∩⋕°$"_-_")
+  °□⊢
+)
+
+Seq       ← + ⊙⇡ ⟜(+1-)
+Log       ← ⌝˜ⁿ
+NumDigits ← +1 ⌊ Log10
+RepeatDigits ← (
+  ⊸(˜ⁿ10 ÷2NumDigits)
+  =⊃(⌊÷|◿)
+)
+ValidId ← (
+  ⊸(◿2 NumDigits)
+  ⨬(¬RepeatDigits|1)
+)
+
+⍚ParseRange Input
+≡(
+  ♭Seq°⊂°□
+  ▽¬ ⊸ValidId
+  /+
+)
+/+